* Rasterization for binned triangles within a tile
*/
+#include <limits.h>
#include "util/u_math.h"
+#include "lp_debug.h"
+#include "lp_perf.h"
#include "lp_rast_priv.h"
#include "lp_tile_soa.h"
-#define BLOCKSIZE 4
-/* Convert 8x8 block into four runs of quads and render each in turn.
+/**
+ * Shade all pixels in a 4x4 block.
*/
-#if (BLOCKSIZE == 8)
-static void block_full( struct lp_rasterizer *rast,
- const struct lp_rast_triangle *tri,
- int x, int y )
+static void
+block_full_4(struct lp_rasterizer_task *task,
+ const struct lp_rast_triangle *tri,
+ int x, int y)
{
- const unsigned masks[4] = {~0, ~0, ~0, ~0};
- int iy;
+ lp_rast_shade_quads_all(task, &tri->inputs, x, y);
+}
+
- for (iy = 0; iy < 8; iy += 2)
- lp_rast_shade_quads(rast, &tri->inputs, x, y + iy, masks);
+/**
+ * Shade all pixels in a 16x16 block.
+ */
+static void
+block_full_16(struct lp_rasterizer_task *task,
+ const struct lp_rast_triangle *tri,
+ int x, int y)
+{
+ unsigned ix, iy;
+ assert(x % 16 == 0);
+ assert(y % 16 == 0);
+ for (iy = 0; iy < 16; iy += 4)
+ for (ix = 0; ix < 16; ix += 4)
+ block_full_4(task, tri, x + ix, y + iy);
}
-#else
-static void block_full( struct lp_rasterizer *rast,
- const struct lp_rast_triangle *tri,
- int x, int y )
+
+#if !defined(PIPE_ARCH_SSE)
+
+static INLINE unsigned
+build_mask_linear(int c, int dcdx, int dcdy)
{
- const unsigned masks[4] = {~0, ~0, ~0, ~0};
+ int mask = 0;
+
+ int c0 = c;
+ int c1 = c0 + dcdy;
+ int c2 = c1 + dcdy;
+ int c3 = c2 + dcdy;
+
+ mask |= ((c0 + 0 * dcdx) >> 31) & (1 << 0);
+ mask |= ((c0 + 1 * dcdx) >> 31) & (1 << 1);
+ mask |= ((c0 + 2 * dcdx) >> 31) & (1 << 2);
+ mask |= ((c0 + 3 * dcdx) >> 31) & (1 << 3);
+ mask |= ((c1 + 0 * dcdx) >> 31) & (1 << 4);
+ mask |= ((c1 + 1 * dcdx) >> 31) & (1 << 5);
+ mask |= ((c1 + 2 * dcdx) >> 31) & (1 << 6);
+ mask |= ((c1 + 3 * dcdx) >> 31) & (1 << 7);
+ mask |= ((c2 + 0 * dcdx) >> 31) & (1 << 8);
+ mask |= ((c2 + 1 * dcdx) >> 31) & (1 << 9);
+ mask |= ((c2 + 2 * dcdx) >> 31) & (1 << 10);
+ mask |= ((c2 + 3 * dcdx) >> 31) & (1 << 11);
+ mask |= ((c3 + 0 * dcdx) >> 31) & (1 << 12);
+ mask |= ((c3 + 1 * dcdx) >> 31) & (1 << 13);
+ mask |= ((c3 + 2 * dcdx) >> 31) & (1 << 14);
+ mask |= ((c3 + 3 * dcdx) >> 31) & (1 << 15);
+
+ return mask;
+}
+
- lp_rast_shade_quads(rast, &tri->inputs, x, y, masks);
+static INLINE void
+build_masks(int c,
+ int cdiff,
+ int dcdx,
+ int dcdy,
+ unsigned *outmask,
+ unsigned *partmask)
+{
+ *outmask |= build_mask_linear(c, dcdx, dcdy);
+ *partmask |= build_mask_linear(c + cdiff, dcdx, dcdy);
}
-#endif
-static INLINE unsigned
-do_quad( const struct lp_rast_triangle *tri,
- int x, int y,
- int c1, int c2, int c3 )
+void
+lp_rast_triangle_3_16(struct lp_rasterizer_task *task,
+ const union lp_rast_cmd_arg arg)
{
- const int xstep1 = -tri->dy12 * FIXED_ONE;
- const int xstep2 = -tri->dy23 * FIXED_ONE;
- const int xstep3 = -tri->dy31 * FIXED_ONE;
-
- const int ystep1 = tri->dx12 * FIXED_ONE;
- const int ystep2 = tri->dx23 * FIXED_ONE;
- const int ystep3 = tri->dx31 * FIXED_ONE;
-
- unsigned mask = 0;
-
- if (c1 > 0 &&
- c2 > 0 &&
- c3 > 0)
- mask |= 1;
-
- if (c1 + xstep1 > 0 &&
- c2 + xstep2 > 0 &&
- c3 + xstep3 > 0)
- mask |= 2;
-
- if (c1 + ystep1 > 0 &&
- c2 + ystep2 > 0 &&
- c3 + ystep3 > 0)
- mask |= 4;
-
- if (c1 + ystep1 + xstep1 > 0 &&
- c2 + ystep2 + xstep2 > 0 &&
- c3 + ystep3 + xstep3 > 0)
- mask |= 8;
+ union lp_rast_cmd_arg arg2;
+ arg2.triangle.tri = arg.triangle.tri;
+ arg2.triangle.plane_mask = (1<<3)-1;
+ lp_rast_triangle_3(task, arg2);
+}
- return mask;
+void
+lp_rast_triangle_3_4(struct lp_rasterizer_task *task,
+ const union lp_rast_cmd_arg arg)
+{
+ lp_rast_triangle_3_16(task, arg);
}
-/* Evaluate each pixel in a block, generate a mask and possibly render
- * the quad:
- */
-static void
-do_block( struct lp_rasterizer *rast,
- const struct lp_rast_triangle *tri,
- int x, int y,
- int c1,
- int c2,
- int c3 )
+#else
+#include <emmintrin.h>
+#include "util/u_sse.h"
+
+
+static INLINE void
+build_masks(int c,
+ int cdiff,
+ int dcdx,
+ int dcdy,
+ unsigned *outmask,
+ unsigned *partmask)
{
- const int step = 2 * FIXED_ONE;
+ __m128i cstep0 = _mm_setr_epi32(c, c+dcdx, c+dcdx*2, c+dcdx*3);
+ __m128i xdcdy = _mm_set1_epi32(dcdy);
- const int xstep1 = -step * tri->dy12;
- const int xstep2 = -step * tri->dy23;
- const int xstep3 = -step * tri->dy31;
+ /* Get values across the quad
+ */
+ __m128i cstep1 = _mm_add_epi32(cstep0, xdcdy);
+ __m128i cstep2 = _mm_add_epi32(cstep1, xdcdy);
+ __m128i cstep3 = _mm_add_epi32(cstep2, xdcdy);
- const int ystep1 = step * tri->dx12;
- const int ystep2 = step * tri->dx23;
- const int ystep3 = step * tri->dx31;
+ {
+ __m128i cstep01, cstep23, result;
- int ix, iy;
+ cstep01 = _mm_packs_epi32(cstep0, cstep1);
+ cstep23 = _mm_packs_epi32(cstep2, cstep3);
+ result = _mm_packs_epi16(cstep01, cstep23);
- unsigned masks[2][2] = {{0, 0}, {0, 0}};
+ *outmask |= _mm_movemask_epi8(result);
+ }
- for (iy = 0; iy < BLOCKSIZE; iy += 2) {
- int cx1 = c1;
- int cx2 = c2;
- int cx3 = c3;
- for (ix = 0; ix < BLOCKSIZE; ix += 2) {
+ {
+ __m128i cio4 = _mm_set1_epi32(cdiff);
+ __m128i cstep01, cstep23, result;
- masks[iy >> 1][ix >> 1] = do_quad(tri, x + ix, y + iy, cx1, cx2, cx3);
+ cstep0 = _mm_add_epi32(cstep0, cio4);
+ cstep1 = _mm_add_epi32(cstep1, cio4);
+ cstep2 = _mm_add_epi32(cstep2, cio4);
+ cstep3 = _mm_add_epi32(cstep3, cio4);
- cx1 += xstep1;
- cx2 += xstep2;
- cx3 += xstep3;
- }
+ cstep01 = _mm_packs_epi32(cstep0, cstep1);
+ cstep23 = _mm_packs_epi32(cstep2, cstep3);
+ result = _mm_packs_epi16(cstep01, cstep23);
- c1 += ystep1;
- c2 += ystep2;
- c3 += ystep3;
+ *partmask |= _mm_movemask_epi8(result);
}
+}
- if(masks[0][0] || masks[0][1] || masks[1][0] || masks[1][1])
- lp_rast_shade_quads(rast, &tri->inputs, x, y, &masks[0][0]);
+
+static INLINE unsigned
+build_mask_linear(int c, int dcdx, int dcdy)
+{
+ __m128i cstep0 = _mm_setr_epi32(c, c+dcdx, c+dcdx*2, c+dcdx*3);
+ __m128i xdcdy = _mm_set1_epi32(dcdy);
+
+ /* Get values across the quad
+ */
+ __m128i cstep1 = _mm_add_epi32(cstep0, xdcdy);
+ __m128i cstep2 = _mm_add_epi32(cstep1, xdcdy);
+ __m128i cstep3 = _mm_add_epi32(cstep2, xdcdy);
+
+ /* pack pairs of results into epi16
+ */
+ __m128i cstep01 = _mm_packs_epi32(cstep0, cstep1);
+ __m128i cstep23 = _mm_packs_epi32(cstep2, cstep3);
+
+ /* pack into epi8, preserving sign bits
+ */
+ __m128i result = _mm_packs_epi16(cstep01, cstep23);
+
+ /* extract sign bits to create mask
+ */
+ return _mm_movemask_epi8(result);
}
+static INLINE unsigned
+sign_bits4(const __m128i *cstep, int cdiff)
+{
+
+ /* Adjust the step values
+ */
+ __m128i cio4 = _mm_set1_epi32(cdiff);
+ __m128i cstep0 = _mm_add_epi32(cstep[0], cio4);
+ __m128i cstep1 = _mm_add_epi32(cstep[1], cio4);
+ __m128i cstep2 = _mm_add_epi32(cstep[2], cio4);
+ __m128i cstep3 = _mm_add_epi32(cstep[3], cio4);
+ /* Pack down to epi8
+ */
+ __m128i cstep01 = _mm_packs_epi32(cstep0, cstep1);
+ __m128i cstep23 = _mm_packs_epi32(cstep2, cstep3);
+ __m128i result = _mm_packs_epi16(cstep01, cstep23);
-/* Scan the tile in chunks and figure out which pixels to rasterize
- * for this triangle:
+ /* Extract the sign bits
+ */
+ return _mm_movemask_epi8(result);
+}
+
+
+/* Special case for 3 plane triangle which is contained entirely
+ * within a 16x16 block.
*/
-void lp_rast_triangle( struct lp_rasterizer *rast,
- const union lp_rast_cmd_arg arg )
+void
+lp_rast_triangle_3_16(struct lp_rasterizer_task *task,
+ const union lp_rast_cmd_arg arg)
{
- const struct lp_rast_triangle *tri = arg.triangle;
-
- const int step = BLOCKSIZE * FIXED_ONE;
+ const struct lp_rast_triangle *tri = arg.triangle.tri;
+ const struct lp_rast_plane *plane = tri->plane;
+ unsigned mask = arg.triangle.plane_mask;
+ const int x = task->x + (mask & 0xff);
+ const int y = task->y + (mask >> 8);
+ unsigned outmask, inmask, partmask, partial_mask;
+ unsigned j;
+ __m128i cstep4[3][4];
+
+ outmask = 0; /* outside one or more trivial reject planes */
+ partmask = 0; /* outside one or more trivial accept planes */
+
+ for (j = 0; j < 3; j++) {
+ const int dcdx = -plane[j].dcdx * 4;
+ const int dcdy = plane[j].dcdy * 4;
+ __m128i xdcdy = _mm_set1_epi32(dcdy);
+
+ cstep4[j][0] = _mm_setr_epi32(0, dcdx, dcdx*2, dcdx*3);
+ cstep4[j][1] = _mm_add_epi32(cstep4[j][0], xdcdy);
+ cstep4[j][2] = _mm_add_epi32(cstep4[j][1], xdcdy);
+ cstep4[j][3] = _mm_add_epi32(cstep4[j][2], xdcdy);
- int ei1 = tri->ei1 * step;
- int ei2 = tri->ei2 * step;
- int ei3 = tri->ei3 * step;
+ {
+ const int c = plane[j].c + plane[j].dcdy * y - plane[j].dcdx * x;
+ const int cox = plane[j].eo * 4;
+ const int cio = plane[j].ei * 4 - 1;
- int eo1 = tri->eo1 * step;
- int eo2 = tri->eo2 * step;
- int eo3 = tri->eo3 * step;
+ outmask |= sign_bits4(cstep4[j], c + cox);
+ partmask |= sign_bits4(cstep4[j], c + cio);
+ }
+ }
- int xstep1 = -step * tri->dy12;
- int xstep2 = -step * tri->dy23;
- int xstep3 = -step * tri->dy31;
+ if (outmask == 0xffff)
+ return;
- int ystep1 = step * tri->dx12;
- int ystep2 = step * tri->dx23;
- int ystep3 = step * tri->dx31;
+ /* Mask of sub-blocks which are inside all trivial accept planes:
+ */
+ inmask = ~partmask & 0xffff;
- /* Clamp to tile dimensions:
+ /* Mask of sub-blocks which are inside all trivial reject planes,
+ * but outside at least one trivial accept plane:
*/
- int minx = MAX2(tri->minx, rast->x);
- int miny = MAX2(tri->miny, rast->y);
- int maxx = MIN2(tri->maxx, rast->x + TILE_SIZE);
- int maxy = MIN2(tri->maxy, rast->y + TILE_SIZE);
+ partial_mask = partmask & ~outmask;
- int x, y;
- int x0, y0;
- int c1, c2, c3;
+ assert((partial_mask & inmask) == 0);
- debug_printf("%s\n", __FUNCTION__);
+ /* Iterate over partials:
+ */
+ while (partial_mask) {
+ int i = ffs(partial_mask) - 1;
+ int ix = (i & 3) * 4;
+ int iy = (i >> 2) * 4;
+ int px = x + ix;
+ int py = y + iy;
+ unsigned mask = 0xffff;
+
+ partial_mask &= ~(1 << i);
+
+ for (j = 0; j < 3; j++) {
+ const int cx = (plane[j].c
+ - plane[j].dcdx * px
+ + plane[j].dcdy * py) * 4;
+
+ mask &= ~sign_bits4(cstep4[j], cx);
+ }
- if (miny == maxy || minx == maxx) {
- debug_printf("%s: non-intersecting triangle in bin\n", __FUNCTION__);
- return;
+ if (mask)
+ lp_rast_shade_quads_mask(task, &tri->inputs, px, py, mask);
}
- minx &= ~(BLOCKSIZE-1);
- miny &= ~(BLOCKSIZE-1);
+ /* Iterate over fulls:
+ */
+ while (inmask) {
+ int i = ffs(inmask) - 1;
+ int ix = (i & 3) * 4;
+ int iy = (i >> 2) * 4;
+ int px = x + ix;
+ int py = y + iy;
+
+ inmask &= ~(1 << i);
- x0 = minx << FIXED_ORDER;
- y0 = miny << FIXED_ORDER;
+ block_full_4(task, tri, px, py);
+ }
+}
- c1 = tri->c1 + tri->dx12 * y0 - tri->dy12 * x0;
- c2 = tri->c2 + tri->dx23 * y0 - tri->dy23 * x0;
- c3 = tri->c3 + tri->dx31 * y0 - tri->dy31 * x0;
- for (y = miny; y < maxy; y += BLOCKSIZE)
+void
+lp_rast_triangle_3_4(struct lp_rasterizer_task *task,
+ const union lp_rast_cmd_arg arg)
+{
+ const struct lp_rast_triangle *tri = arg.triangle.tri;
+ const struct lp_rast_plane *plane = tri->plane;
+ unsigned mask = arg.triangle.plane_mask;
+ const int x = task->x + (mask & 0xff);
+ const int y = task->y + (mask >> 8);
+ unsigned j;
+
+ /* Iterate over partials:
+ */
{
- int cx1 = c1;
- int cx2 = c2;
- int cx3 = c3;
+ unsigned mask = 0xffff;
- for (x = minx; x < maxx; x += BLOCKSIZE)
- {
- if (cx1 + eo1 < 0 ||
- cx2 + eo2 < 0 ||
- cx3 + eo3 < 0)
- {
- }
- else if (cx1 + ei1 > 0 &&
- cx2 + ei2 > 0 &&
- cx3 + ei3 > 0)
- {
- block_full(rast, tri, x, y); /* trivial accept */
- }
- else
- {
- do_block(rast, tri, x, y, cx1, cx2, cx3);
- }
-
- /* Iterate cx values across the region:
- */
- cx1 += xstep1;
- cx2 += xstep2;
- cx3 += xstep3;
+ for (j = 0; j < 3; j++) {
+ const int cx = (plane[j].c
+ - plane[j].dcdx * x
+ + plane[j].dcdy * y);
+
+ const int dcdx = -plane[j].dcdx;
+ const int dcdy = plane[j].dcdy;
+ __m128i xdcdy = _mm_set1_epi32(dcdy);
+
+ __m128i cstep0 = _mm_setr_epi32(cx, cx + dcdx, cx + dcdx*2, cx + dcdx*3);
+ __m128i cstep1 = _mm_add_epi32(cstep0, xdcdy);
+ __m128i cstep2 = _mm_add_epi32(cstep1, xdcdy);
+ __m128i cstep3 = _mm_add_epi32(cstep2, xdcdy);
+
+ __m128i cstep01 = _mm_packs_epi32(cstep0, cstep1);
+ __m128i cstep23 = _mm_packs_epi32(cstep2, cstep3);
+ __m128i result = _mm_packs_epi16(cstep01, cstep23);
+
+ /* Extract the sign bits
+ */
+ mask &= ~_mm_movemask_epi8(result);
}
- /* Iterate c values down the region:
- */
- c1 += ystep1;
- c2 += ystep2;
- c3 += ystep3;
+ if (mask)
+ lp_rast_shade_quads_mask(task, &tri->inputs, x, y, mask);
}
}
+
+#endif
+
+
+
+
+#define TAG(x) x##_1
+#define NR_PLANES 1
+#include "lp_rast_tri_tmp.h"
+
+#define TAG(x) x##_2
+#define NR_PLANES 2
+#include "lp_rast_tri_tmp.h"
+
+#define TAG(x) x##_3
+#define NR_PLANES 3
+#include "lp_rast_tri_tmp.h"
+
+#define TAG(x) x##_4
+#define NR_PLANES 4
+#include "lp_rast_tri_tmp.h"
+
+#define TAG(x) x##_5
+#define NR_PLANES 5
+#include "lp_rast_tri_tmp.h"
+
+#define TAG(x) x##_6
+#define NR_PLANES 6
+#include "lp_rast_tri_tmp.h"
+
+#define TAG(x) x##_7
+#define NR_PLANES 7
+#include "lp_rast_tri_tmp.h"
+
+#define TAG(x) x##_8
+#define NR_PLANES 8
+#include "lp_rast_tri_tmp.h"
+
projects / mesa.git / blobdiff